DE2032688A1 - Pneumatic vehicle tires - Google Patents

Description

- 2032888

Continental Gummi-Werke AG «Hanover Pneumatic vehicle tires

However, the invention relates in particular to a pneumatic vehicle tire a radial tire, with a preferably single-layer reinforcement member running approximately at right angles to the tire circumferential direction Carcass, with the reinforcements being anchored by wrapping around the bead cores and their free ends from the outside are wrapped inwardly around the bead cores with the free ends facing the tire cavity, and further a chipper is provided between the carcass and the outer surface of the tire body, which consists of parallel threads, wires Or the like. Which run at an angle to the reinforcement members of the carcass.

In the known pneumatic tires in which the free ends of the carcass strength beams on the side of the carcass facing the tire cavity, i.e. ending on the inside of the tire bead, special ones result. Advantages with regard to the stress and strain on the reinforcements in the area of the rim horns when the tire sidewalls bend outwards during compression to the side.

It is also known that the tire beads against undesired mechanical To protect influences from the rim) this happens by the aforementioned bead reinforcements, which are thus laterally attached to the outside of the Tire beads are arranged.

The invention is based on the object of improving the tires mentioned at the outset in such a way that their fatigue strength continues to be high is increased.

To achieve this object, according to the invention, the bulge reinforcements cover the edges of the carcass facing the tire cavity and also the bead reinforcements end in the area between the rim flange and the tire sidewall halfway up.

209814/0432 " ² "

This avoids that even with such free ends of the carcass, which are only turned up by a small amount, these ends experience a loosening in the event of heavy permanent loads or even fold down in the direction of the tire cavity · The bead reinforcements according to the invention prevent such an error because they cover the aforementioned ends and also compare are drawn far up towards the tire sidewall. In addition, the bead reinforcements are also at an angle to the reinforcements run through the carcass, so that, due to this angular position, there are already signs of separation and undesirable movements can prevent the aforementioned free carcass ends.

Further details of the invention are explained with reference to the drawing, which shows an embodiment which is preferably to be used. Show it:

1 shows a pneumatic vehicle tire in partial section,

FIG. 2 shows the bead part of the tire according to FIG. 1 in an enlarged representation, namely likewise on average, and

Fig. 3 located in the area of the tire beads ,, Reinforcing inserts of the pneumatic tires according to the invention facing the tire cavity in the direction of arrow III according to Figure 2.

• *

The essentially consisting of rubber or rubber-like material tire body has a single-ply carcass 1 from extending at right angles to the tire circumferential direction of steel ropes 2 ₉ h anchored by being looped around the tire cores 3 to the tire beads. The steel cables 2 are led from the outside inwards $ dia fr © i © n

- 3 0 9 814/0432

- 2032888

The ends 5 of the steel cables 2 therefore end in the area of the tire beads 4 which face the tire cavity 6.

A belt 8 is located between the tread 7 and the carcass 1 arranged, the ale in the circumferential direction tensile, calibrated substantially over the width of the tire 7 extending ring is formed, which solidifies the tire body 1 in the area of the tread 7 and also against the 'action of lateral forces stabilized.

In the area of the bead parts, a bead reinforcement 7 is also provided, which, like the carcass, consists of steel cables 9 essentially parallel to one another. However, these do not run at right angles to the tire circumferential direction, but, as can be seen from FIG. 3, at an angle to it. Preferably, the carcass forming the steel cables 9 with the reinforcing members or the steel ropes 2 1 angle (λ of about ¹ IO to 75 °.

It is also important that the bead reinforcements 7 the free ends 5 cover or still protrude considerably in the direction of the tread 7. . .

The free ends 5 form an edge 10, the bead reinforcement 7 the inner edge 11 and an outer edge 12. The outer portion of the bead reinforcement 7 is also denoted by 13 and the portion of the bead reinforcement 7 facing the tire cavity 6 is denoted by Ak.

As can be seen from FIG. 2, the free ends 5 extend approximately up to the height of the rim flange 15 of the rim 16. Der.Rand 10 is only slightly above the rim flange 15

2098U / 0432

The edge 11 of the chipper 7 is, however, relatively far behind pulled up. The section 10 has a height extension h which is approximately one third of the height H, which is that of the tire sidewalls 17 corresponds.

The outer edge 12 or its section 13, however, ends between the edge 10 and the edge 11.

The apparent from Figure 3 inclined position of the cables 9 and the relatively large length of the portion 7 have sur result, be prevented even during continuous stresses separation phenomena of the free ends 5, but especially td.rd prevented under high load _t a folding of the free ends 5 can occur in the direction of arrow 18. All of these measures do not affect the particularly favorable stress on the steel cables 2 in the sections which face the section 13 and which also extend in the direction of the tread 7 beyond naca above.

2098U / Q432

Claims (3)

- 5 - ■ · ■ ". ■ '- Expectations: L 1. Pneumatic vehicle tires, especially radial tires, with a preferred \ —_ ^ wise single-ply, roughly at right angles to the direction of the primary tire running reinforcements having carcass, wherein the reinforcements by wrapping around the bead cores on these are anchored and their free ends from the outside to the inside in the. Way are wrapped around the bead cores that the free ends are facing the tire cavity, and further between the Carcass and the outer surface of the tire body a chipper is provided, which consists of parallel threads, wires Or the like. Which run at an angle to the reinforcement members of the carcass, characterized in that the bead reinforcements (7) cover the edges (10) of the carcass (1) facing the tire cavity (6) and in the area between the rim flange (15) and the tire sidewall (17). end halfway up. 2. Pneumatic vehicle tires with a bead reinforcement with a U-shaped cross-section according to claim 1, characterized in that both legs of the bead reinforcement (7) are facing the tire cavity (6) Overhang the edge (10) and the leg (section 13) located between the carcass (2) and the rim flange (15) with respect to the height position of its edge (12) between the edge (10) of the carcass (2) and the edge (11) of the tire cavity (6) .zuekehrten Leg (section 1 * 0 of the chipper (7) ends. 3. Pneumatic vehicle tire according to claim 1, characterized in that the effective length (height h) of the tire cavity (6) facing section (1 ¹ O of the bead reinforcement (7) is about a third of the height (H) of the tire sidewalls (17). ■, ■ Pneumatic vehicle tire according to claim 1, characterized in that the length (1) of the edges (5) of the carcass (2) facing the tire cavity (6) is approximately half as great as the effective length (height h) of the sections facing the tire cavity (1 * 0 der Wuletveratärker ^ '9 81 4/0432 Hanover, July 1st 197 °
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